Cistern.



PATENTED JAN. 14, 1908. A?. G. PETERSON. GISTBRN. APPLICATION FILEDJUNI: 29, 190e.

Wim/55555.-

.hardening plastic materials.

ure 1 is asemi-vertical section and elevation of derground use. Fig. 2is a detail view of a lmain or bottom portion of the cistei'n, whichbody and top of the cistern are-each formed UNITED STATES PATENT oEEioE.

CISTERN.

Specification of Letters Patent.

Patented Jan. 14, 1908.

Application filed Julie 29. 1906.I Serial No. 324.069.

To all whpm it may concern:

Be it known that I, ANDREW G. PETERSON, l a citizen of the UnitedStates, residing at Wahpeton, in the county of Richland and State ofNorth Dakota, have invented a new and -useful Cistern, of which thefollowing is a s ecification.

he present invention relates to cisterns or reservoirs for the storageof Water and other liquids, and it relates more particularly to cisternsconstructed of concrete or other selfv The invention has for its objectsto iniprove and simplify devices of this characterJ so that they areeasy to construct, substantial and durable, inexpensive to manufacture,and readily accessible for cleaning.

With these objects in view, and others, as will appear as the inventionis better understood, the'same comprises the various features ofconstruction and arrangement of parts described hereinafter and setforth with particularity, in the claims appended;

hereto.

In the accompanying drawing, wnicli illustrates one embodiment of theinvention, Figthe cistern more particularly adapted for unportion of thetank for adapting the saine for above ground use. `Fig. 3 is-a detailview of pipe.

Corresponding parts in the seveial figures are indicated throughout bysimilar characbody 1 and cover 2 are provided with a numters ofreference.

Y Referring to the drawing, 1 represents the in transverse horizontalsection may be circular or polygonal, as desired, the cylindrical sha ebeing preferable. Arranged on the top 4of tiie'body 1 of the cistern isa cover 2 shaped in the form of a cap with a contracted throat 3 that isclosed by a cap or plate 4. The

of p astio material made of one part of .Port-l land cementand one and ahalf parts of sand. These proportions are satisfactory for certainresults, but may be-changed, and also other materials maybe ein loyed,if desired. Suitable forins are provi ed for molding the parts of thecistern, as will be readily understood.-

.Embedded in the walls of theI body 1 and cover? are iron members 5 forthe purpose. l

, ofreinforcing the walls seas to withstand the i pressures subjected tothem. The members l 5 in thebody 1 eaclicomprises a strip of iron ofsuitable cross section that extends diametrically of and embedded in thebottom of the body and extends upwardly' from thel ends of the bottoniportion 6 to form side portions 7 that are embedded in the cylindricalwall of the body 1. The extremities ofthe reinforcing irons arepreferably continued outwardly through and 4beyond the exterior surfaceof the body to forni lugs 8. Inthe present illustration, two reinforcingirons are shown, they being arranged diametrically of the cistern and inplanes disposed at right angles to each other. 'It is obvious that anynumber of these reinforcing irons maybe employed, and further, any tWoopposite side` portions 7, instead of being connected by a common baseor bottoni portion 6, may be separate. 1 The cover 2 has also embeddedin its walls a plurality of reinforcing irons 5 that are arranged in thesame planes with the irons in the body 1, so that thelugs 10 formeflbytheir lower ends rojecting outwardly from the cover, will aine with thelugs 8. The lugs 8 and 10 are provided With registeringperforatioiis toreceive the bolts 11, which latter hold the cover securely on thecistern body. The joint between the cover and body is formed by anannular groove in one of'them, which is V- shaped in a radial directionand the other member is correspondingly shaped to iit the groove. Such ajoint l'orins a perfect seal when the cover is securely bolted to thebody. -For further reinforcing the cistern, the

ber of circumferentiallioops'or bands l2 arranged in any'desiredi'nanner. The neck 3 of the cover is formed with an annular shoulder 13against which fits a corres )ondingly shaped shoulder 14 on the cover pate 4. The-cover plate may be held in place by its -.own Weight, or byany suitable device, as desired.. Extending into the cistorn through thecover are pipes 15 and.16, the saine snugly iitting in openings inthecover plate for :receiving them. The pipe 15 serves to convey thewater or other liquid to be stored into the cisterii, and extends only ashort distance below the cover late. It is provided with a self closingva ve 16 fulcrunied ics at 17 on a lug 18 and maintained in normallyclosed position by the adjustable counterbalance weight 19. The valve isso weighted that it will automatically open under the weight of liquidiii or flowing through the point more or less elevated above the flooror ground,l a connection may bemade With the cistern adjacent the basethereof at a point indicated at 20, Fig. 2. This connection a may supplyone or morefaucets located rials, arrangement of parts, and proportionsmore or less remote from the cistern in a suitable pipe system, as vWillbe `readily underf stood, or a faucet,'2l, as shown, may be applieddirectly to the cistern at the 1point 20.

I have described the principle of t e inven-` tion, together `with theapparatus which I now consider to be the best embodiment thereof, but Idesire to have it understood that the apparatus shown is merelyillustrative, and that various` changes in the matemay be resorted to,as are with-in the scope of the invention.- I also desire to have itunderstood that the term cistern is'to be construed to mean anyreceptacle or reservoir, for Water or other liquids, of all sizes, fromtubs torailroad tanks.

` Vhat is claimed is- 1. 'A cistern comprising a hollow body `made ofplastic material in one homogeneous piece, and a plurality ofreinforcing metal strips embedded in said body, each metal stripextending diametrically across .the bottom of said body, then up thesides in a vertical direction to a point near the top the ends thereofbeing bent outwardly to project lin a radial direction through andbeyond the exv terior face of the cistern wall to form attaching lugs.

2. A cisternl comprising ka hollow body and cover each made of plasticmaterial in one homogeneous piece, avplurality of reinforcing metalstrips embedded longitudinally in the side wall of said body, theupperen'd of each reinforcing strip bent outwardly to project throughand beyond the exterior face of the body Wall, a plurality of metalreinforcing strips embedded in said cover vand in alinement throughouttheir length with those in the body and bent outwardly at their lowerends to projectthrough and beyond the Wall of the cover, and means forconnecting each'reinforcing strip in said body to an alined strip in thecover.

3. A cistern comprising a body and se arable cover each made of plasticmateriaf a lurality of reinforcing metal strips embedded ongitudinallyin the Aside wall of said body, the upper end of each reinforcing stripbent outwardly to project through and beyond the exterior face of thebody wall, a plurality of metal reinforcing strips embedded in saidcover and in alinement throughout their length with those in the bodyand bent outwardly at their lower endsto project through and beyond thewall of the cover, means for connecting each reinforcing strip in saidbody to an alined strip in the cover, and reinforcing bands extendinghorizontally around the exterior of said body and cover and partlyembedded in the substance thereof.

In testimony that I claim the foregoing as'V -my own, I have heretoaffixed my signature in the vpresence of two witnesses.

ANDREW G. PETERSON.

Witnesses Y DAN R. JONES,

JOSEPH G. FORBES.'

